How sleep affects the developmental learning of bird song
How sleep affects the developmental learning of bird song
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DOI：
10.1038/nature03275
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发表时间：
2005-02-17
期刊：
影响因子：
64.8
通讯作者：
Tchernichovski, O
中科院分区：
文献类型：
--
作者：
Derégnaucourt, S;Mitra, PP;Tchernichovski, O
睡眠影响人类和其他动物的学习和发育，但睡眠在发育性学习中的作用从未被研究过。在这里，我们通过记录和分析整个歌曲的个体发育显示夜间睡眠对斑胸草雀歌曲发展的影响。在快速学习期间，我们观察到夜间睡眠后歌曲结构明显恶化。经过激烈的晨唱后，这首歌又恢复了结构。每日改善的相似性辅导的歌曲发生在今天上午恢复的后期阶段，几乎没有进一步的改善发生。此外，在发育过程中表现出更强的睡眠后退化的鸟类实现了更好的最终模仿。这种效果随着年龄的增长而减弱。我们的实验表明，这些振荡不是睡眠惯性或缺乏练习的结果，这表明可能涉及一个活跃的过程，也许是睡眠期间的神经歌曲重放。我们认为，这些振荡对应于学习过程中可塑性和巩固性的竞争需求，创造了重复的机会来重塑以前学习的运动技能。
Sleep affects learning and development in humans and other animals, but the role of sleep in developmental learning has never been examined. Here we show the effects of night-sleep on song development in the zebra finch by recording and analysing the entire song ontogeny. During periods of rapid learning we observed a pronounced deterioration in song structure after night-sleep. The song regained structure after intense morning singing. Daily improvement in similarity to the tutored song occurred during the late phase of this morning recovery; little further improvement occurred thereafter. Furthermore, birds that showed stronger post-sleep deterioration during development achieved a better final imitation. The effect diminished with age. Our experiments showed that these oscillations were not a result of sleep inertia or lack of practice, indicating the possible involvement of an active process, perhaps neural song-replay during sleep. We suggest that these oscillations correspond to competing demands of plasticity and consolidation during learning, creating repeated opportunities to reshape previously learned motor skills.